1125572406 has 32 divisors (see below), whose sum is σ = 2587127040. Its totient is φ = 319793376.

The previous prime is 1125572401. The next prime is 1125572411. The reversal of 1125572406 is 6042755211.

It is an interprime number because it is at equal distance from previous prime (1125572401) and next prime (1125572411).

It is a super-2 number, since 2×1125572406² = 2533826482297257672, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125572401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67341 + ... + 82376.

It is an arithmetic number, because the mean of its divisors is an integer number (80847720).

Almost surely, 2^1125572406 is an apocalyptic number.

1125572406 is an abundant number, since it is smaller than the sum of its proper divisors (1461554634).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1125572406 is a wasteful number, since it uses less digits than its factorization.

1125572406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149908.

The product of its (nonzero) digits is 16800, while the sum is 33.

The square root of 1125572406 is about 33549.5515022183. The cubic root of 1125572406 is about 1040.2182745750.

The spelling of 1125572406 in words is "one billion, one hundred twenty-five million, five hundred seventy-two thousand, four hundred six".